Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual é a potência de saída para a classe 5?
 ###Tabelas: CREATE TABLE current_rolling_stock (current_rolling_stock_id AUTO_INCREMENT PRIMARY KEY, Class VARCHAR, Introduced VARCHAR, Number in class INT, Number in service INT, Power output (kW) INT) CREATE TABLE 2010_regular_season_football_standings (2010_regular_season_football_standings_id AUTO_INCREMENT PRIMARY KEY, School VARCHAR, Team VARCHAR, Division Record VARCHAR, Overall Record VARCHAR, Season Outcome VARCHAR) CREATE TABLE suburbs (suburbs_id AUTO_INCREMENT PRIMARY KEY, Suburb VARCHAR, Population (in 2008) INT, Median age (in 2006) VARCHAR, Mean household size (in 2006) VARCHAR, Area (km²) VARCHAR, Density (/km²) INT, Date first settled as a suburb INT, Gazetted as a Division Name VARCHAR) CREATE TABLE medals_table (medals_table_id AUTO_INCREMENT PRIMARY KEY, Rank VARCHAR, Nation VARCHAR, Gold INT, Silver INT, Bronze INT, Total INT) CREATE TABLE le_series_models (le_series_models_id AUTO_INCREMENT PRIMARY KEY, Colt model no. VARCHAR, Name VARCHAR, Stock VARCHAR, Fire control VARCHAR, Rear sight VARCHAR, Forward assist VARCHAR, Barrel length VARCHAR, Barrel profile VARCHAR, Barrel twist VARCHAR, Hand guards VARCHAR, Bayonet Lug VARCHAR, Muzzle device VARCHAR)  
SELECT Power output (kW) FROM current_rolling_stock WHERE Number in class = 5